package thread;

import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ThreadPoolDemo {
    public static void main(String[] args) {
        ExecutorService threadPool =Executors.newFixedThreadPool(2);
        for (int i=0;i<5;i++) {
            Runnable r=new Runnable() {
                @Override
                public void run() {
                    Thread t=Thread.currentThread();
                    System.out.println(t.getName()+"正在执行任务......");
                    try {
                        t.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println(t.getName()+"任务执行完毕");
                }
            };
            threadPool.execute(r);
            System.out.println("将一个任务交给了线程池");
        }
        threadPool.shutdown();
        //threadPool.shutdownNow();
        System.out.println("线程池关闭");
    }
}
